He has a bat(改为否定句）

He has a bat(改为否定句） He has a baseball bat 变否定句 He has a ping-pong bat.(改为否定句）顺便解释一下什么时候用have什么时候用has我小学英语没学好啊. I have a bat.（改为否定句） He has a strawberry.(改为否定句) He has a stomachache.(改为否定句) He has a dream改为否定句 He has a toothache.改为否定句. he has a TV改为否定句 He has a black bag.（改为否定句） 1.They have three hats(改为否定句）They ____ _____ three hats.2.Tom has a nice backpack.(改为一般疑问句）____Tom _____ a nice backpack?3.He has a ping-pong bat.He _____ _____ a ping-pong bat.4.Sonia ____ ____(没有） a computer 1.She has a ping-pong bat.(改为一般疑问句并肯定个回答) -_____she____a ping-pong bat?-Yes,she_____2.He has a telephone,(改为否定句)He______ _______a telephone.3.Is that your baseball?(改为复数形式）______ ______your______?4.I Mike has a baseball bat ,改否定句 he has a ping-pong ball 改为一般疑问句my pen is in my pencil case（对in my pencil case提问）the ping-pong bat is under the chair(对the ping-pong bat提问）bob likes volleyball(改为否定句）谢谢 I have a baseball bat改为否定句 He has a baseball bat改为一般疑问句怎么改? he has a tennis bat改为复数形式 HE HAS A NEW PEN.改为否定句怎么改?